Cluster computing

Today we continue to look at emerging trends in Data storage. Retail companies are increasingly relying on data access services rather than...

#codingexercise In a rowwise and columnwise sorted matrix, enumerate the elements in ascending order There is a front that moves fro...

#puzzle Without computer assistance, find five different sets of three positive integers {k, m, n} such that k < m < n and (1/k)+(...

#puzzle  A rearrangement of the letters of a word has no fixed letters if, when the rearrangement is placed directly below the word, no co...

codingexercise Find the sub-tree with maximum  color difference in  a 2 colored tree We define color difference as the magnitude of the n...

An essay in the system design of SignIn workflows.  Most web applications require to authenticate a user via signing in. Such applicatio...

#puzzle The integer 72 is the first of three consecutive integers 72, 73, and 74, that can each be expressed as the sum of the squares o...